CHEMISTRY COLLEGE

A solution is prepared by dissolving 10.0 g of NaBr and 10.0 g of Na2SO4 in water to make a 100.0 mL solution. This solution is then mixed with 75.0 mL of a 0.800 M aqueous solution of AlBr3. Calculate the concentration (M) of Na+ and Br− in the final solution.

Answers

Answer 1
Answer:

Answer:

Explanation:

Hello,

At first, it turns out convenient to compute the total moles of sodium that will be dissolved into the solution by considering the added amounts of sodium bromide and sodium sulfate:

Once we've got the moles we compute the final volume via:

Thus, the molarity of the sodium atoms turn out into:

Now, we perform the same procedure but now for the bromide ions:

Finally, its molarity results:

Best regards.


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